Development of Stamped Steel Exhaust Manifolds—A Materials Supplier Program 810034

This paper describes a materials supplier program designed to develop the use of stamped stainless steel exhaust manifolds for internal combustion engines. Inception of the program was the result of a plan to reduce weight of cast engine components through the substitution of stamped steel components. The process of material choice, prototype, manufacture, initial testing, and resulting noise problems are described. Noise reduction methods are reviewed including computer analysis.Prototype design production, testing, and joining methods are discussed.A review of the current state of the art and the projected future of stamped stainless steel exhaust manifolds conclude the paper.


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